We wanted to study how students at our school spend money.In order to study this,we made some questions to ask our class

We wanted to study how students at our school spend money.In order to study this,we made some questions to ask our classmates.First,we asked our classmate how much money the spent in one month.Then we asked how much money they spent for things like drinks ,music,books,movies,computer games,and other things.Our math teacher helped us make a graph of our classmates'answers.
Then we thought it would be interesting to compare these answers with our classmates'expenses from last year.It was a little hard for them to remember how much they spent on some things.We used their answers to make another graph for their expenses last year.
Looking at the two graphs,it is easy to compare the axpenses for the two years.Some of their expenses increased,but others decreased.This was a very interesting project for us.
( )1.What do students spend most of their money on?
A.books B.computer games C.movies D.drinks and snacks
( )2.Many of the students'expenses changed.Which expense stayed the same?
A.CDs B.phone C.transportation D.other
( )3.Which expense was lower this year?
A.CDs B.books C.phone D.transportation
( )4.What does "decrease"mean?
A.change B.go down C.go up D.stay at
( )5.Which of the following is true?
A.We asked our teachers and classmates some questions.
B.Our matn teacher helped us make some questions.
C.This graph shows the differences in how studends spent money in two different years.
D.All of their expenses increased this year.